import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
Vue.use(VueRouter)

const routes = [{
    path: '/',
    redirect: '/login'
  },
  {
    path: '/login',
    component: Login
  },
  {
    path: '/home',
    component: Home,
    redirect: '/welcome',
    children: [
      { path: '/welcome', component: Welcome },
      { path: '/users', component:Users },
      { path: '/rights', component:Rights },
      { path: '/roles', component:Roles },
      { path: '/categories', component:Cate }
    ]
  }
]
const router = new VueRouter({
  routes
})
//挂载路由导航守卫
router.beforeEach((to, from, next) => {
  //to 将要访问的路径
  //from代表从哪个路径跳转而来
  //next 是一个函数，表示放行
  if (to.path === '/login') return next();
  //获取token
  var tokenStr = window.sessionStorage.getItem('token');
  if (!tokenStr) return next('login')
  next()
})

export default router
